According to U.S EPA Drinking Water Regulations, what is the maximum permissible level of sulfates in drinking water?

The maximum permissible level of sulfates in drinking water, as established by the U.S. EPA Drinking Water Regulations, is set at 250 parts per million (ppm). This standard is based on health considerations and the potential for sulfates to cause gastrointestinal discomfort, particularly in vulnerable populations such as infants or people not used to high sulfate levels.

Maintaining the sulfate concentration within this limit helps to ensure that drinking water remains safe and palatable for the general population. Concentrations above this level may lead to noticeable taste and odor issues, as well as potential laxative effects for those who are not accustomed to higher levels of sulfates in their diet. This regulation reflects the balance between public health protection and ensuring that drinking water remains usable and acceptable for consumption.